Alistair Loveless is the main villain in the Cluefinders 4th Grade Adventures game. He plans on unleashing the power of Set, the Egyptian God of Evil and Chaos, whom it was believed Peribsen was aligned with. Loveless planned for this ever since he was a poor urchin in the streets of London. But Loveless's plan had a loose end that he forgot to tie up (which later proved to be his undoing), inside a secret passageway was a scroll that Loveless and his goons have forgotten was later found by Socrates and the Cluefinders which they later translated to pursue him and thwart the unleashing of Set.
Alistair Loveless interrogates Professor Botch for one piece of information: the location of the ring (the one that latched onto Joni's finger). Professor Botch tries to feign ignorance, but Loveless manages to figure out the ClueFinders have the ring and sends his minions after them, as well as admitting to a shocked Professor Botch of his plot of conducting a ceremony to awaken Set from his slumber.
Having acquired the ring, Loveless returns to the tomb, where he will begin the ceremony to summon Set and unleash the power of Chaos. His goons put ancient pistons and gears in place that will cause the pyramid, long buried underground, to rise to the surface, so that Loveless will be ready to conduct the ceremony.
Meanwhile, Loveless finally manages to awaken Set from the ground in order to grant the power of Ultimate Chaos. As it turns out, however, his overconfidence was his weakness, as he has never considered the possibility that he might not be able to "control Chaos," just as Professor Botch warned before. As punishment for Loveless' foolishness, Set transports Loveless' soul to a dead mummy, just before the ClueFinders show up to stop Set. Loveless, now a living mummy, gets angry at Set for his current condition and demands that he be granted of the power of Ultimate Chaos. Set, seeing that Loveless is still sticking to his mistake again, refuses, and instead flings Loveless and his minions down a chasm with one wave of his hand and was never seen until the end of the skirmish against Set.
LapTrap and Socrates express relief that Set is finally gone forever and they won't be seeing the now-mummified Loveless again. (Unbeknownst to the ClueFinders) the mummified Loveless disguised as a newspaper-reading passenger and cackling madly.
- His name is a parody of and reference to the renegade ex-Cobnferedate scientist Dr. Arliss Loveless from Wild Wild West.